Vapor generator



Dec. 7 1926.

F. SAMUELSON VAPOR GENERATOR Filed June 1. 1925 Inventor: Frederick Samuelsb'n,

His Attorney.

, ran-Danica; sa yrnntsoiv; or ensign; ENGLAND, "Assamesesemen :nnnorraro coivrmrnv,nsortroim rrouor new YORK;

' V R NERaroe.

V I Application fil ed' June .1; a s-genera... 33,29 as in, a ea izrital 1 1924;

type in which a: liquid such as mercury is evaporated within-rotating tubes, a layer of mercury being continuously keptflin con? tact with the inner surfac'eof eachrotating tube. i The objectof means whereby the gquant'ity of mercury re quired within the'tube may -be reduced without decreasing the heating surtace. .A further object is to provide means. for damping the surging of the mercury,in the tube, ,in

* cases where the generator'is mounted on a moving platform, for example, ""onboard ship or in an airivessel. 1 v l I l a This invention comprises providing-a'dev lvice within the rotating tube which 1 while occupying a'considerablespace in close proxnot prevent the mercury orother liquid being evaporated, from coming into actual eontact with the heated inner wall of the'tube,

passages being provided to permit of the, mercury being fedinto contact with the methodof carrying my invention into'efi'ect, Fig. lbemg a longitudinal sectlon through 'a tube fitted with my improvements; Fig. 2 a cross section on the line 2..2, Fig. 1; Fig.

- "as cross section on the line 3-3,;F ig."1;';

and Fig. 14: is a fragmentary sectional view.

of the tubeon a largerfs'cale.

In the drawing, 1 represents a rotating U 7 h V "patentfstatutes, I havedescribedthe principle of operation or my invention, together tube or casing inwhich' mercury or other liquid-is to be evaporated. This tube is PTO-'1 vided with suitable end'covers2. fitted with ball or roller bearings 3, suitablyfsupported" from the housing of the boiler, so that the tube is free to rotate. Secured to, the covers 2 are pipes a and 5 through, theiormer of r whichmercury is fed into the rotating tube,

' whilethe vapor generatedpasses out through the latter tube. I

Insidethe main tube I fit acagefi, com-- prising a; tubular memberhaving boxes or chambers 7 formed therein. As will be seen vfrom Fig. 2, these boxes or chambershave' a considerable circumferential lengthin prox I imity totheinner'walls of; the tube 1,- but this length is considerably reduced atthe point 8. -"With such a construction, it is possible to This invention relates to vapor: generators 1 and more particularly togenerators of the the'invention is to provide.

imit'y to the inner surface of the tube, does have a considerable pressure exerted due-to v V the centrifugal force of the mercury in the boxes *or chambers 7 without excessive welght'ot mercury beinggcontained in the tube This gis owing to thefact that" the pressuredue-to "centrifugaliforce' in the'constriated portion 8 isitransmitted through the bodylof mercury.' contained in the box or chamberfi, and actsasjif the rotating tube contained a layer of "mercury everywhere equal to the thickness "ofthe' rotating cage 6.

The. cageissorarranged that the fluid 'tobeevaporated canbe :t'ed inthrough the pipe 4 to'any desired points of the tube simultaneously;- This is attained by fitting, a'pipe 9 along thecentral axis of the cage, and sup ported within" the end wall of the cage, and

ring or chamber '10, and thence by'means of 1 tures 12 are provided inQcenter Wall 9 to slow passage of mercury from one box or chamber7 to, another, andthus prevent surgingshould the generator be mounted on a moving platform. V

also in the-"center vvall' or ispider 9 at themiddle of the cage. This'pipel9 feedsfluid 'up' suitable radial passages-9? to the annular passages 11 intothe boxes of the rotating cage. This is clearly shown in Fig.3. Aper- Thevvapo'r generated passes through the pipe 5 to the means provided to convertthe energy.,contai1'ied-in it into "useful work, for example,;1n a turbine or other prlme mover. Inaocordance with the 'provlsions of the with the apparatus which Inow consider to represent the best embodiment'ther'eof, but

I desireto have itunderstood that the appa- 1. In a; boiler of "the rotating tube. type,

the combination of a rotatablejcasingfand a filler structure in the casing which defines with-the casing inner and outer chambers 7 connected'by radially narrow width. 7 7 I Y 2. In alboiler ofwthe rotating tube type,

the combination fofa casing, and an annu-' extendingpassages of ilar cage therein, said cage being'provided Wit-h recesseswhich form Withthe inner surface of the casing chambers "hav ng come paratively large clrcuinit'erentlal length, and

said cage being provided With -passages which serve to connect'the chambers to the interior of the cage.

3. In aboiler of the rotating tube type, the Combination of a casing and an-annular cage thereinysaid cage being provided ith recesses Which form with the inner surface of the casing chan bers having ctnnparativelye large circumferential length, and said cage being: provided With passages which serve to connect the chambers-to the interior ofthe cage,,and means for feeding liquid into thecasing ata plurality of points.

4. In a boiler otthc rotating tube type, the combination of a'casing'andan annular cage: therein, said: cage being provided "with recesses which form,with the inner surface o e a i g chambers havl gicomparatlver' 1y, large circumferential length, and said i cage: being; provided withpassages which serve to connect the chambers to; the lnterior or" thecage, the Walls-of said'chambers be ing vprovided With passages Which serve to connect together adjacent chambers and-permit of the slow passage of liquid from one chamber to another. r

. 5. In a boiler of the rotating tube type,-

the combination of a casing, and astruct-ure in the casing which defines with the inner surfaceof the casing a plurality of circum ferentially-extending liquid chambers and radially-extending passages which i connect such chambers with the central portion of the casing. V

6. In boiler of the rotating tube type, the

combination of a casing and an annular structure therein comprising longitudinally extending members Which provide: with: the

inner surtaceoithe casing chambers-W11 ich areopen to the innersurtface of the casing overthe magor' por ion of its area and pas sages connectingsaid chambers tofthe'interior. of the structure, and means for feeding liquid, into said chambers at'a plurality of points.

n Witness whereof, I have hereunto set vmy hand this'fifteenth day of May 1925.

FREDERICK SAMUELSON.

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